March 2018
Intermediate to advanced
626 pages
17h 32m
English
book
Network Analysis Using Wireshark 2 Cookbook - Second Edition
by Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss
Content preview from Network Analysis Using Wireshark 2 Cookbook - Second Edition
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Getting ready
In general, a display filter string takes the form of a series of primitive expressions connected by conjunctions (and|or and so on) and optionally preceded by not:
[not] Expression [and|or] [not] Expression...
While:
- Expression can be any filter expression such as ip.src==192.168.1.1 (for source address), tcp.flags.syn==1 for TCP sync flag presence, tcp.analysis.retransmission for TCP retransmissions, and so on
- and|or are conjunctions that can be used in any combination of expressions, including brackets, multiple brackets, and any length of string
The conditions can be one of the following:
|
C-like syntax |
Shortcut |
Description |
Example |
|
== |
eq |
Equal |
ip.addr == 192.168.1.1 or ip.addr eq 192.168.1.1 |
|
!= |
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